CQ Publishing / Mbed 2 deprecated tg_201410s8_AD7714

Transistor Gijutsu, October 2014, Special Features Chapter 8，Software of the thermistor thermometer of 0.001 ° resolution， トランジスタ技術2014年10月号　特集第8章のソフトウェア　0.001℃分解能で気配もキャッチ「超敏感肌温度計」

Dependencies:   USBDevice mbed

Information

tg_201410s8_AD7714 トランジスタ技術 2014年 10月号 第8章のソフトウェア

Program for Section 8 in October. 2014 issue of the Transistor Gijutsu
(Japanese electronics magazine)

概要

このプログラムは、サーミスタの抵抗値変化をAD7714(24bitADC)で測定し、抵抗値を温度値に変換することで、0.001℃程度の分解能で温度変化を測定します。

ファイル

このソフトウエアは、次のファイルから構成されています。

  • AD7714.cpp - AD7714の内部レジスタを設定
  • Thermistor.cpp - サーミスタの抵抗値から温度値に変換
  • ExpAvr.cpp - 指数平均によるソフトウエアＬＰＦ
  • main.cpp - main()関数

詳細については、10月号の記事および上記ファイル中のコメントを参照してください。

USBDevice/USBMSD/USBMSD.cpp@0:de885a6da962, 2014-08-29 (annotated)

Committer:
Dance
Date:
Fri Aug 29 08:38:36 2014 +0000
Revision:
0:de885a6da962
Transistor Gijutsu, October 2014, Special Features Chapter 8; ????????2014?10??????8????????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Dance 0:de885a6da962 1 /* Copyright (c) 2010-2011 mbed.org, MIT License
Dance 0:de885a6da962 2 *
Dance 0:de885a6da962 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
Dance 0:de885a6da962 4 * and associated documentation files (the "Software"), to deal in the Software without
Dance 0:de885a6da962 5 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
Dance 0:de885a6da962 6 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
Dance 0:de885a6da962 7 * Software is furnished to do so, subject to the following conditions:
Dance 0:de885a6da962 8 *
Dance 0:de885a6da962 9 * The above copyright notice and this permission notice shall be included in all copies or
Dance 0:de885a6da962 10 * substantial portions of the Software.
Dance 0:de885a6da962 11 *
Dance 0:de885a6da962 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
Dance 0:de885a6da962 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
Dance 0:de885a6da962 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
Dance 0:de885a6da962 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
Dance 0:de885a6da962 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Dance 0:de885a6da962 17 */
Dance 0:de885a6da962 18
Dance 0:de885a6da962 19 #include "stdint.h"
Dance 0:de885a6da962 20 #include "USBMSD.h"
Dance 0:de885a6da962 21
Dance 0:de885a6da962 22 #define DISK_OK 0x00
Dance 0:de885a6da962 23 #define NO_INIT 0x01
Dance 0:de885a6da962 24 #define NO_DISK 0x02
Dance 0:de885a6da962 25 #define WRITE_PROTECT 0x04
Dance 0:de885a6da962 26
Dance 0:de885a6da962 27 #define CBW_Signature 0x43425355
Dance 0:de885a6da962 28 #define CSW_Signature 0x53425355
Dance 0:de885a6da962 29
Dance 0:de885a6da962 30 // SCSI Commands
Dance 0:de885a6da962 31 #define TEST_UNIT_READY 0x00
Dance 0:de885a6da962 32 #define REQUEST_SENSE 0x03
Dance 0:de885a6da962 33 #define FORMAT_UNIT 0x04
Dance 0:de885a6da962 34 #define INQUIRY 0x12
Dance 0:de885a6da962 35 #define MODE_SELECT6 0x15
Dance 0:de885a6da962 36 #define MODE_SENSE6 0x1A
Dance 0:de885a6da962 37 #define START_STOP_UNIT 0x1B
Dance 0:de885a6da962 38 #define MEDIA_REMOVAL 0x1E
Dance 0:de885a6da962 39 #define READ_FORMAT_CAPACITIES 0x23
Dance 0:de885a6da962 40 #define READ_CAPACITY 0x25
Dance 0:de885a6da962 41 #define READ10 0x28
Dance 0:de885a6da962 42 #define WRITE10 0x2A
Dance 0:de885a6da962 43 #define VERIFY10 0x2F
Dance 0:de885a6da962 44 #define READ12 0xA8
Dance 0:de885a6da962 45 #define WRITE12 0xAA
Dance 0:de885a6da962 46 #define MODE_SELECT10 0x55
Dance 0:de885a6da962 47 #define MODE_SENSE10 0x5A
Dance 0:de885a6da962 48
Dance 0:de885a6da962 49 // MSC class specific requests
Dance 0:de885a6da962 50 #define MSC_REQUEST_RESET 0xFF
Dance 0:de885a6da962 51 #define MSC_REQUEST_GET_MAX_LUN 0xFE
Dance 0:de885a6da962 52
Dance 0:de885a6da962 53 #define DEFAULT_CONFIGURATION (1)
Dance 0:de885a6da962 54
Dance 0:de885a6da962 55 // max packet size
Dance 0:de885a6da962 56 #define MAX_PACKET MAX_PACKET_SIZE_EPBULK
Dance 0:de885a6da962 57
Dance 0:de885a6da962 58 // CSW Status
Dance 0:de885a6da962 59 enum Status {
Dance 0:de885a6da962 60 CSW_PASSED,
Dance 0:de885a6da962 61 CSW_FAILED,
Dance 0:de885a6da962 62 CSW_ERROR,
Dance 0:de885a6da962 63 };
Dance 0:de885a6da962 64
Dance 0:de885a6da962 65
Dance 0:de885a6da962 66 USBMSD::USBMSD(uint16_t vendor_id, uint16_t product_id, uint16_t product_release): USBDevice(vendor_id, product_id, product_release) {
Dance 0:de885a6da962 67 stage = READ_CBW;
Dance 0:de885a6da962 68 memset((void *)&cbw, 0, sizeof(CBW));
Dance 0:de885a6da962 69 memset((void *)&csw, 0, sizeof(CSW));
Dance 0:de885a6da962 70 page = NULL;
Dance 0:de885a6da962 71 }
Dance 0:de885a6da962 72
Dance 0:de885a6da962 73 USBMSD::~USBMSD() {
Dance 0:de885a6da962 74 disconnect();
Dance 0:de885a6da962 75 }
Dance 0:de885a6da962 76
Dance 0:de885a6da962 77
Dance 0:de885a6da962 78 // Called in ISR context to process a class specific request
Dance 0:de885a6da962 79 bool USBMSD::USBCallback_request(void) {
Dance 0:de885a6da962 80
Dance 0:de885a6da962 81 bool success = false;
Dance 0:de885a6da962 82 CONTROL_TRANSFER * transfer = getTransferPtr();
Dance 0:de885a6da962 83 static uint8_t maxLUN[1] = {0};
Dance 0:de885a6da962 84
Dance 0:de885a6da962 85 if (transfer->setup.bmRequestType.Type == CLASS_TYPE) {
Dance 0:de885a6da962 86 switch (transfer->setup.bRequest) {
Dance 0:de885a6da962 87 case MSC_REQUEST_RESET:
Dance 0:de885a6da962 88 reset();
Dance 0:de885a6da962 89 success = true;
Dance 0:de885a6da962 90 break;
Dance 0:de885a6da962 91 case MSC_REQUEST_GET_MAX_LUN:
Dance 0:de885a6da962 92 transfer->remaining = 1;
Dance 0:de885a6da962 93 transfer->ptr = maxLUN;
Dance 0:de885a6da962 94 transfer->direction = DEVICE_TO_HOST;
Dance 0:de885a6da962 95 success = true;
Dance 0:de885a6da962 96 break;
Dance 0:de885a6da962 97 default:
Dance 0:de885a6da962 98 break;
Dance 0:de885a6da962 99 }
Dance 0:de885a6da962 100 }
Dance 0:de885a6da962 101
Dance 0:de885a6da962 102 return success;
Dance 0:de885a6da962 103 }
Dance 0:de885a6da962 104
Dance 0:de885a6da962 105
Dance 0:de885a6da962 106 bool USBMSD::connect(bool blocking) {
Dance 0:de885a6da962 107 //disk initialization
Dance 0:de885a6da962 108 if (disk_status() & NO_INIT) {
Dance 0:de885a6da962 109 if (disk_initialize()) {
Dance 0:de885a6da962 110 return false;
Dance 0:de885a6da962 111 }
Dance 0:de885a6da962 112 }
Dance 0:de885a6da962 113
Dance 0:de885a6da962 114 // get number of blocks
Dance 0:de885a6da962 115 BlockCount = disk_sectors();
Dance 0:de885a6da962 116
Dance 0:de885a6da962 117 // get memory size
Dance 0:de885a6da962 118 MemorySize = disk_size();
Dance 0:de885a6da962 119
Dance 0:de885a6da962 120 if (BlockCount > 0) {
Dance 0:de885a6da962 121 BlockSize = MemorySize / BlockCount;
Dance 0:de885a6da962 122 if (BlockSize != 0) {
Dance 0:de885a6da962 123 free(page);
Dance 0:de885a6da962 124 page = (uint8_t *)malloc(BlockSize * sizeof(uint8_t));
Dance 0:de885a6da962 125 if (page == NULL)
Dance 0:de885a6da962 126 return false;
Dance 0:de885a6da962 127 }
Dance 0:de885a6da962 128 } else {
Dance 0:de885a6da962 129 return false;
Dance 0:de885a6da962 130 }
Dance 0:de885a6da962 131
Dance 0:de885a6da962 132 //connect the device
Dance 0:de885a6da962 133 USBDevice::connect(blocking);
Dance 0:de885a6da962 134 return true;
Dance 0:de885a6da962 135 }
Dance 0:de885a6da962 136
Dance 0:de885a6da962 137 void USBMSD::disconnect() {
Dance 0:de885a6da962 138 //De-allocate MSD page size:
Dance 0:de885a6da962 139 free(page);
Dance 0:de885a6da962 140 page = NULL;
Dance 0:de885a6da962 141 USBDevice::disconnect();
Dance 0:de885a6da962 142 }
Dance 0:de885a6da962 143
Dance 0:de885a6da962 144 void USBMSD::reset() {
Dance 0:de885a6da962 145 stage = READ_CBW;
Dance 0:de885a6da962 146 }
Dance 0:de885a6da962 147
Dance 0:de885a6da962 148
Dance 0:de885a6da962 149 // Called in ISR context called when a data is received
Dance 0:de885a6da962 150 bool USBMSD::EP2_OUT_callback() {
Dance 0:de885a6da962 151 uint32_t size = 0;
Dance 0:de885a6da962 152 uint8_t buf[MAX_PACKET_SIZE_EPBULK];
Dance 0:de885a6da962 153 readEP(EPBULK_OUT, buf, &size, MAX_PACKET_SIZE_EPBULK);
Dance 0:de885a6da962 154 switch (stage) {
Dance 0:de885a6da962 155 // the device has to decode the CBW received
Dance 0:de885a6da962 156 case READ_CBW:
Dance 0:de885a6da962 157 CBWDecode(buf, size);
Dance 0:de885a6da962 158 break;
Dance 0:de885a6da962 159
Dance 0:de885a6da962 160 // the device has to receive data from the host
Dance 0:de885a6da962 161 case PROCESS_CBW:
Dance 0:de885a6da962 162 switch (cbw.CB[0]) {
Dance 0:de885a6da962 163 case WRITE10:
Dance 0:de885a6da962 164 case WRITE12:
Dance 0:de885a6da962 165 memoryWrite(buf, size);
Dance 0:de885a6da962 166 break;
Dance 0:de885a6da962 167 case VERIFY10:
Dance 0:de885a6da962 168 memoryVerify(buf, size);
Dance 0:de885a6da962 169 break;
Dance 0:de885a6da962 170 }
Dance 0:de885a6da962 171 break;
Dance 0:de885a6da962 172
Dance 0:de885a6da962 173 // an error has occured: stall endpoint and send CSW
Dance 0:de885a6da962 174 default:
Dance 0:de885a6da962 175 stallEndpoint(EPBULK_OUT);
Dance 0:de885a6da962 176 csw.Status = CSW_ERROR;
Dance 0:de885a6da962 177 sendCSW();
Dance 0:de885a6da962 178 break;
Dance 0:de885a6da962 179 }
Dance 0:de885a6da962 180
Dance 0:de885a6da962 181 //reactivate readings on the OUT bulk endpoint
Dance 0:de885a6da962 182 readStart(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK);
Dance 0:de885a6da962 183 return true;
Dance 0:de885a6da962 184 }
Dance 0:de885a6da962 185
Dance 0:de885a6da962 186 // Called in ISR context when a data has been transferred
Dance 0:de885a6da962 187 bool USBMSD::EP2_IN_callback() {
Dance 0:de885a6da962 188 switch (stage) {
Dance 0:de885a6da962 189
Dance 0:de885a6da962 190 // the device has to send data to the host
Dance 0:de885a6da962 191 case PROCESS_CBW:
Dance 0:de885a6da962 192 switch (cbw.CB[0]) {
Dance 0:de885a6da962 193 case READ10:
Dance 0:de885a6da962 194 case READ12:
Dance 0:de885a6da962 195 memoryRead();
Dance 0:de885a6da962 196 break;
Dance 0:de885a6da962 197 }
Dance 0:de885a6da962 198 break;
Dance 0:de885a6da962 199
Dance 0:de885a6da962 200 //the device has to send a CSW
Dance 0:de885a6da962 201 case SEND_CSW:
Dance 0:de885a6da962 202 sendCSW();
Dance 0:de885a6da962 203 break;
Dance 0:de885a6da962 204
Dance 0:de885a6da962 205 // the host has received the CSW -> we wait a CBW
Dance 0:de885a6da962 206 case WAIT_CSW:
Dance 0:de885a6da962 207 stage = READ_CBW;
Dance 0:de885a6da962 208 break;
Dance 0:de885a6da962 209
Dance 0:de885a6da962 210 // an error has occured
Dance 0:de885a6da962 211 default:
Dance 0:de885a6da962 212 stallEndpoint(EPBULK_IN);
Dance 0:de885a6da962 213 sendCSW();
Dance 0:de885a6da962 214 break;
Dance 0:de885a6da962 215 }
Dance 0:de885a6da962 216 return true;
Dance 0:de885a6da962 217 }
Dance 0:de885a6da962 218
Dance 0:de885a6da962 219
Dance 0:de885a6da962 220 void USBMSD::memoryWrite (uint8_t * buf, uint16_t size) {
Dance 0:de885a6da962 221
Dance 0:de885a6da962 222 if ((addr + size) > MemorySize) {
Dance 0:de885a6da962 223 size = MemorySize - addr;
Dance 0:de885a6da962 224 stage = ERROR;
Dance 0:de885a6da962 225 stallEndpoint(EPBULK_OUT);
Dance 0:de885a6da962 226 }
Dance 0:de885a6da962 227
Dance 0:de885a6da962 228 // we fill an array in RAM of 1 block before writing it in memory
Dance 0:de885a6da962 229 for (int i = 0; i < size; i++)
Dance 0:de885a6da962 230 page[addr%BlockSize + i] = buf[i];
Dance 0:de885a6da962 231
Dance 0:de885a6da962 232 // if the array is filled, write it in memory
Dance 0:de885a6da962 233 if (!((addr + size)%BlockSize)) {
Dance 0:de885a6da962 234 if (!(disk_status() & WRITE_PROTECT)) {
Dance 0:de885a6da962 235 disk_write(page, addr/BlockSize);
Dance 0:de885a6da962 236 }
Dance 0:de885a6da962 237 }
Dance 0:de885a6da962 238
Dance 0:de885a6da962 239 addr += size;
Dance 0:de885a6da962 240 length -= size;
Dance 0:de885a6da962 241 csw.DataResidue -= size;
Dance 0:de885a6da962 242
Dance 0:de885a6da962 243 if ((!length) || (stage != PROCESS_CBW)) {
Dance 0:de885a6da962 244 csw.Status = (stage == ERROR) ? CSW_FAILED : CSW_PASSED;
Dance 0:de885a6da962 245 sendCSW();
Dance 0:de885a6da962 246 }
Dance 0:de885a6da962 247 }
Dance 0:de885a6da962 248
Dance 0:de885a6da962 249 void USBMSD::memoryVerify (uint8_t * buf, uint16_t size) {
Dance 0:de885a6da962 250 uint32_t n;
Dance 0:de885a6da962 251
Dance 0:de885a6da962 252 if ((addr + size) > MemorySize) {
Dance 0:de885a6da962 253 size = MemorySize - addr;
Dance 0:de885a6da962 254 stage = ERROR;
Dance 0:de885a6da962 255 stallEndpoint(EPBULK_OUT);
Dance 0:de885a6da962 256 }
Dance 0:de885a6da962 257
Dance 0:de885a6da962 258 // beginning of a new block -> load a whole block in RAM
Dance 0:de885a6da962 259 if (!(addr%BlockSize))
Dance 0:de885a6da962 260 disk_read(page, addr/BlockSize);
Dance 0:de885a6da962 261
Dance 0:de885a6da962 262 // info are in RAM -> no need to re-read memory
Dance 0:de885a6da962 263 for (n = 0; n < size; n++) {
Dance 0:de885a6da962 264 if (page[addr%BlockSize + n] != buf[n]) {
Dance 0:de885a6da962 265 memOK = false;
Dance 0:de885a6da962 266 break;
Dance 0:de885a6da962 267 }
Dance 0:de885a6da962 268 }
Dance 0:de885a6da962 269
Dance 0:de885a6da962 270 addr += size;
Dance 0:de885a6da962 271 length -= size;
Dance 0:de885a6da962 272 csw.DataResidue -= size;
Dance 0:de885a6da962 273
Dance 0:de885a6da962 274 if ( !length || (stage != PROCESS_CBW)) {
Dance 0:de885a6da962 275 csw.Status = (memOK && (stage == PROCESS_CBW)) ? CSW_PASSED : CSW_FAILED;
Dance 0:de885a6da962 276 sendCSW();
Dance 0:de885a6da962 277 }
Dance 0:de885a6da962 278 }
Dance 0:de885a6da962 279
Dance 0:de885a6da962 280
Dance 0:de885a6da962 281 bool USBMSD::inquiryRequest (void) {
Dance 0:de885a6da962 282 uint8_t inquiry[] = { 0x00, 0x80, 0x00, 0x01,
Dance 0:de885a6da962 283 36 - 4, 0x80, 0x00, 0x00,
Dance 0:de885a6da962 284 'M', 'B', 'E', 'D', '.', 'O', 'R', 'G',
Dance 0:de885a6da962 285 'M', 'B', 'E', 'D', ' ', 'U', 'S', 'B', ' ', 'D', 'I', 'S', 'K', ' ', ' ', ' ',
Dance 0:de885a6da962 286 '1', '.', '0', ' ',
Dance 0:de885a6da962 287 };
Dance 0:de885a6da962 288 if (!write(inquiry, sizeof(inquiry))) {
Dance 0:de885a6da962 289 return false;
Dance 0:de885a6da962 290 }
Dance 0:de885a6da962 291 return true;
Dance 0:de885a6da962 292 }
Dance 0:de885a6da962 293
Dance 0:de885a6da962 294
Dance 0:de885a6da962 295 bool USBMSD::readFormatCapacity() {
Dance 0:de885a6da962 296 uint8_t capacity[] = { 0x00, 0x00, 0x00, 0x08,
Dance 0:de885a6da962 297 (uint8_t)((BlockCount >> 24) & 0xff),
Dance 0:de885a6da962 298 (uint8_t)((BlockCount >> 16) & 0xff),
Dance 0:de885a6da962 299 (uint8_t)((BlockCount >> 8) & 0xff),
Dance 0:de885a6da962 300 (uint8_t)((BlockCount >> 0) & 0xff),
Dance 0:de885a6da962 301
Dance 0:de885a6da962 302 0x02,
Dance 0:de885a6da962 303 (uint8_t)((BlockSize >> 16) & 0xff),
Dance 0:de885a6da962 304 (uint8_t)((BlockSize >> 8) & 0xff),
Dance 0:de885a6da962 305 (uint8_t)((BlockSize >> 0) & 0xff),
Dance 0:de885a6da962 306 };
Dance 0:de885a6da962 307 if (!write(capacity, sizeof(capacity))) {
Dance 0:de885a6da962 308 return false;
Dance 0:de885a6da962 309 }
Dance 0:de885a6da962 310 return true;
Dance 0:de885a6da962 311 }
Dance 0:de885a6da962 312
Dance 0:de885a6da962 313
Dance 0:de885a6da962 314 bool USBMSD::readCapacity (void) {
Dance 0:de885a6da962 315 uint8_t capacity[] = {
Dance 0:de885a6da962 316 (uint8_t)(((BlockCount - 1) >> 24) & 0xff),
Dance 0:de885a6da962 317 (uint8_t)(((BlockCount - 1) >> 16) & 0xff),
Dance 0:de885a6da962 318 (uint8_t)(((BlockCount - 1) >> 8) & 0xff),
Dance 0:de885a6da962 319 (uint8_t)(((BlockCount - 1) >> 0) & 0xff),
Dance 0:de885a6da962 320
Dance 0:de885a6da962 321 (uint8_t)((BlockSize >> 24) & 0xff),
Dance 0:de885a6da962 322 (uint8_t)((BlockSize >> 16) & 0xff),
Dance 0:de885a6da962 323 (uint8_t)((BlockSize >> 8) & 0xff),
Dance 0:de885a6da962 324 (uint8_t)((BlockSize >> 0) & 0xff),
Dance 0:de885a6da962 325 };
Dance 0:de885a6da962 326 if (!write(capacity, sizeof(capacity))) {
Dance 0:de885a6da962 327 return false;
Dance 0:de885a6da962 328 }
Dance 0:de885a6da962 329 return true;
Dance 0:de885a6da962 330 }
Dance 0:de885a6da962 331
Dance 0:de885a6da962 332 bool USBMSD::write (uint8_t * buf, uint16_t size) {
Dance 0:de885a6da962 333
Dance 0:de885a6da962 334 if (size >= cbw.DataLength) {
Dance 0:de885a6da962 335 size = cbw.DataLength;
Dance 0:de885a6da962 336 }
Dance 0:de885a6da962 337 stage = SEND_CSW;
Dance 0:de885a6da962 338
Dance 0:de885a6da962 339 if (!writeNB(EPBULK_IN, buf, size, MAX_PACKET_SIZE_EPBULK)) {
Dance 0:de885a6da962 340 return false;
Dance 0:de885a6da962 341 }
Dance 0:de885a6da962 342
Dance 0:de885a6da962 343 csw.DataResidue -= size;
Dance 0:de885a6da962 344 csw.Status = CSW_PASSED;
Dance 0:de885a6da962 345 return true;
Dance 0:de885a6da962 346 }
Dance 0:de885a6da962 347
Dance 0:de885a6da962 348
Dance 0:de885a6da962 349 bool USBMSD::modeSense6 (void) {
Dance 0:de885a6da962 350 uint8_t sense6[] = { 0x03, 0x00, 0x00, 0x00 };
Dance 0:de885a6da962 351 if (!write(sense6, sizeof(sense6))) {
Dance 0:de885a6da962 352 return false;
Dance 0:de885a6da962 353 }
Dance 0:de885a6da962 354 return true;
Dance 0:de885a6da962 355 }
Dance 0:de885a6da962 356
Dance 0:de885a6da962 357 void USBMSD::sendCSW() {
Dance 0:de885a6da962 358 csw.Signature = CSW_Signature;
Dance 0:de885a6da962 359 writeNB(EPBULK_IN, (uint8_t *)&csw, sizeof(CSW), MAX_PACKET_SIZE_EPBULK);
Dance 0:de885a6da962 360 stage = WAIT_CSW;
Dance 0:de885a6da962 361 }
Dance 0:de885a6da962 362
Dance 0:de885a6da962 363 bool USBMSD::requestSense (void) {
Dance 0:de885a6da962 364 uint8_t request_sense[] = {
Dance 0:de885a6da962 365 0x70,
Dance 0:de885a6da962 366 0x00,
Dance 0:de885a6da962 367 0x05, // Sense Key: illegal request
Dance 0:de885a6da962 368 0x00,
Dance 0:de885a6da962 369 0x00,
Dance 0:de885a6da962 370 0x00,
Dance 0:de885a6da962 371 0x00,
Dance 0:de885a6da962 372 0x0A,
Dance 0:de885a6da962 373 0x00,
Dance 0:de885a6da962 374 0x00,
Dance 0:de885a6da962 375 0x00,
Dance 0:de885a6da962 376 0x00,
Dance 0:de885a6da962 377 0x30,
Dance 0:de885a6da962 378 0x01,
Dance 0:de885a6da962 379 0x00,
Dance 0:de885a6da962 380 0x00,
Dance 0:de885a6da962 381 0x00,
Dance 0:de885a6da962 382 0x00,
Dance 0:de885a6da962 383 };
Dance 0:de885a6da962 384
Dance 0:de885a6da962 385 if (!write(request_sense, sizeof(request_sense))) {
Dance 0:de885a6da962 386 return false;
Dance 0:de885a6da962 387 }
Dance 0:de885a6da962 388
Dance 0:de885a6da962 389 return true;
Dance 0:de885a6da962 390 }
Dance 0:de885a6da962 391
Dance 0:de885a6da962 392 void USBMSD::fail() {
Dance 0:de885a6da962 393 csw.Status = CSW_FAILED;
Dance 0:de885a6da962 394 sendCSW();
Dance 0:de885a6da962 395 }
Dance 0:de885a6da962 396
Dance 0:de885a6da962 397
Dance 0:de885a6da962 398 void USBMSD::CBWDecode(uint8_t * buf, uint16_t size) {
Dance 0:de885a6da962 399 if (size == sizeof(cbw)) {
Dance 0:de885a6da962 400 memcpy((uint8_t *)&cbw, buf, size);
Dance 0:de885a6da962 401 if (cbw.Signature == CBW_Signature) {
Dance 0:de885a6da962 402 csw.Tag = cbw.Tag;
Dance 0:de885a6da962 403 csw.DataResidue = cbw.DataLength;
Dance 0:de885a6da962 404 if ((cbw.CBLength < 1) || (cbw.CBLength > 16) ) {
Dance 0:de885a6da962 405 fail();
Dance 0:de885a6da962 406 } else {
Dance 0:de885a6da962 407 switch (cbw.CB[0]) {
Dance 0:de885a6da962 408 case TEST_UNIT_READY:
Dance 0:de885a6da962 409 testUnitReady();
Dance 0:de885a6da962 410 break;
Dance 0:de885a6da962 411 case REQUEST_SENSE:
Dance 0:de885a6da962 412 requestSense();
Dance 0:de885a6da962 413 break;
Dance 0:de885a6da962 414 case INQUIRY:
Dance 0:de885a6da962 415 inquiryRequest();
Dance 0:de885a6da962 416 break;
Dance 0:de885a6da962 417 case MODE_SENSE6:
Dance 0:de885a6da962 418 modeSense6();
Dance 0:de885a6da962 419 break;
Dance 0:de885a6da962 420 case READ_FORMAT_CAPACITIES:
Dance 0:de885a6da962 421 readFormatCapacity();
Dance 0:de885a6da962 422 break;
Dance 0:de885a6da962 423 case READ_CAPACITY:
Dance 0:de885a6da962 424 readCapacity();
Dance 0:de885a6da962 425 break;
Dance 0:de885a6da962 426 case READ10:
Dance 0:de885a6da962 427 case READ12:
Dance 0:de885a6da962 428 if (infoTransfer()) {
Dance 0:de885a6da962 429 if ((cbw.Flags & 0x80)) {
Dance 0:de885a6da962 430 stage = PROCESS_CBW;
Dance 0:de885a6da962 431 memoryRead();
Dance 0:de885a6da962 432 } else {
Dance 0:de885a6da962 433 stallEndpoint(EPBULK_OUT);
Dance 0:de885a6da962 434 csw.Status = CSW_ERROR;
Dance 0:de885a6da962 435 sendCSW();
Dance 0:de885a6da962 436 }
Dance 0:de885a6da962 437 }
Dance 0:de885a6da962 438 break;
Dance 0:de885a6da962 439 case WRITE10:
Dance 0:de885a6da962 440 case WRITE12:
Dance 0:de885a6da962 441 if (infoTransfer()) {
Dance 0:de885a6da962 442 if (!(cbw.Flags & 0x80)) {
Dance 0:de885a6da962 443 stage = PROCESS_CBW;
Dance 0:de885a6da962 444 } else {
Dance 0:de885a6da962 445 stallEndpoint(EPBULK_IN);
Dance 0:de885a6da962 446 csw.Status = CSW_ERROR;
Dance 0:de885a6da962 447 sendCSW();
Dance 0:de885a6da962 448 }
Dance 0:de885a6da962 449 }
Dance 0:de885a6da962 450 break;
Dance 0:de885a6da962 451 case VERIFY10:
Dance 0:de885a6da962 452 if (!(cbw.CB[1] & 0x02)) {
Dance 0:de885a6da962 453 csw.Status = CSW_PASSED;
Dance 0:de885a6da962 454 sendCSW();
Dance 0:de885a6da962 455 break;
Dance 0:de885a6da962 456 }
Dance 0:de885a6da962 457 if (infoTransfer()) {
Dance 0:de885a6da962 458 if (!(cbw.Flags & 0x80)) {
Dance 0:de885a6da962 459 stage = PROCESS_CBW;
Dance 0:de885a6da962 460 memOK = true;
Dance 0:de885a6da962 461 } else {
Dance 0:de885a6da962 462 stallEndpoint(EPBULK_IN);
Dance 0:de885a6da962 463 csw.Status = CSW_ERROR;
Dance 0:de885a6da962 464 sendCSW();
Dance 0:de885a6da962 465 }
Dance 0:de885a6da962 466 }
Dance 0:de885a6da962 467 break;
Dance 0:de885a6da962 468 case MEDIA_REMOVAL:
Dance 0:de885a6da962 469 csw.Status = CSW_PASSED;
Dance 0:de885a6da962 470 sendCSW();
Dance 0:de885a6da962 471 break;
Dance 0:de885a6da962 472 default:
Dance 0:de885a6da962 473 fail();
Dance 0:de885a6da962 474 break;
Dance 0:de885a6da962 475 }
Dance 0:de885a6da962 476 }
Dance 0:de885a6da962 477 }
Dance 0:de885a6da962 478 }
Dance 0:de885a6da962 479 }
Dance 0:de885a6da962 480
Dance 0:de885a6da962 481 void USBMSD::testUnitReady (void) {
Dance 0:de885a6da962 482
Dance 0:de885a6da962 483 if (cbw.DataLength != 0) {
Dance 0:de885a6da962 484 if ((cbw.Flags & 0x80) != 0) {
Dance 0:de885a6da962 485 stallEndpoint(EPBULK_IN);
Dance 0:de885a6da962 486 } else {
Dance 0:de885a6da962 487 stallEndpoint(EPBULK_OUT);
Dance 0:de885a6da962 488 }
Dance 0:de885a6da962 489 }
Dance 0:de885a6da962 490
Dance 0:de885a6da962 491 csw.Status = CSW_PASSED;
Dance 0:de885a6da962 492 sendCSW();
Dance 0:de885a6da962 493 }
Dance 0:de885a6da962 494
Dance 0:de885a6da962 495
Dance 0:de885a6da962 496 void USBMSD::memoryRead (void) {
Dance 0:de885a6da962 497 uint32_t n;
Dance 0:de885a6da962 498
Dance 0:de885a6da962 499 n = (length > MAX_PACKET) ? MAX_PACKET : length;
Dance 0:de885a6da962 500
Dance 0:de885a6da962 501 if ((addr + n) > MemorySize) {
Dance 0:de885a6da962 502 n = MemorySize - addr;
Dance 0:de885a6da962 503 stage = ERROR;
Dance 0:de885a6da962 504 }
Dance 0:de885a6da962 505
Dance 0:de885a6da962 506 // we read an entire block
Dance 0:de885a6da962 507 if (!(addr%BlockSize))
Dance 0:de885a6da962 508 disk_read(page, addr/BlockSize);
Dance 0:de885a6da962 509
Dance 0:de885a6da962 510 // write data which are in RAM
Dance 0:de885a6da962 511 writeNB(EPBULK_IN, &page[addr%BlockSize], n, MAX_PACKET_SIZE_EPBULK);
Dance 0:de885a6da962 512
Dance 0:de885a6da962 513 addr += n;
Dance 0:de885a6da962 514 length -= n;
Dance 0:de885a6da962 515
Dance 0:de885a6da962 516 csw.DataResidue -= n;
Dance 0:de885a6da962 517
Dance 0:de885a6da962 518 if ( !length || (stage != PROCESS_CBW)) {
Dance 0:de885a6da962 519 csw.Status = (stage == PROCESS_CBW) ? CSW_PASSED : CSW_FAILED;
Dance 0:de885a6da962 520 stage = (stage == PROCESS_CBW) ? SEND_CSW : stage;
Dance 0:de885a6da962 521 }
Dance 0:de885a6da962 522 }
Dance 0:de885a6da962 523
Dance 0:de885a6da962 524
Dance 0:de885a6da962 525 bool USBMSD::infoTransfer (void) {
Dance 0:de885a6da962 526 uint32_t n;
Dance 0:de885a6da962 527
Dance 0:de885a6da962 528 // Logical Block Address of First Block
Dance 0:de885a6da962 529 n = (cbw.CB[2] << 24) | (cbw.CB[3] << 16) | (cbw.CB[4] << 8) | (cbw.CB[5] << 0);
Dance 0:de885a6da962 530
Dance 0:de885a6da962 531 addr = n * BlockSize;
Dance 0:de885a6da962 532
Dance 0:de885a6da962 533 // Number of Blocks to transfer
Dance 0:de885a6da962 534 switch (cbw.CB[0]) {
Dance 0:de885a6da962 535 case READ10:
Dance 0:de885a6da962 536 case WRITE10:
Dance 0:de885a6da962 537 case VERIFY10:
Dance 0:de885a6da962 538 n = (cbw.CB[7] << 8) | (cbw.CB[8] << 0);
Dance 0:de885a6da962 539 break;
Dance 0:de885a6da962 540
Dance 0:de885a6da962 541 case READ12:
Dance 0:de885a6da962 542 case WRITE12:
Dance 0:de885a6da962 543 n = (cbw.CB[6] << 24) | (cbw.CB[7] << 16) | (cbw.CB[8] << 8) | (cbw.CB[9] << 0);
Dance 0:de885a6da962 544 break;
Dance 0:de885a6da962 545 }
Dance 0:de885a6da962 546
Dance 0:de885a6da962 547 length = n * BlockSize;
Dance 0:de885a6da962 548
Dance 0:de885a6da962 549 if (!cbw.DataLength) { // host requests no data
Dance 0:de885a6da962 550 csw.Status = CSW_FAILED;
Dance 0:de885a6da962 551 sendCSW();
Dance 0:de885a6da962 552 return false;
Dance 0:de885a6da962 553 }
Dance 0:de885a6da962 554
Dance 0:de885a6da962 555 if (cbw.DataLength != length) {
Dance 0:de885a6da962 556 if ((cbw.Flags & 0x80) != 0) {
Dance 0:de885a6da962 557 stallEndpoint(EPBULK_IN);
Dance 0:de885a6da962 558 } else {
Dance 0:de885a6da962 559 stallEndpoint(EPBULK_OUT);
Dance 0:de885a6da962 560 }
Dance 0:de885a6da962 561
Dance 0:de885a6da962 562 csw.Status = CSW_FAILED;
Dance 0:de885a6da962 563 sendCSW();
Dance 0:de885a6da962 564 return false;
Dance 0:de885a6da962 565 }
Dance 0:de885a6da962 566
Dance 0:de885a6da962 567 return true;
Dance 0:de885a6da962 568 }
Dance 0:de885a6da962 569
Dance 0:de885a6da962 570
Dance 0:de885a6da962 571
Dance 0:de885a6da962 572
Dance 0:de885a6da962 573
Dance 0:de885a6da962 574 // Called in ISR context
Dance 0:de885a6da962 575 // Set configuration. Return false if the
Dance 0:de885a6da962 576 // configuration is not supported.
Dance 0:de885a6da962 577 bool USBMSD::USBCallback_setConfiguration(uint8_t configuration) {
Dance 0:de885a6da962 578 if (configuration != DEFAULT_CONFIGURATION) {
Dance 0:de885a6da962 579 return false;
Dance 0:de885a6da962 580 }
Dance 0:de885a6da962 581
Dance 0:de885a6da962 582 // Configure endpoints > 0
Dance 0:de885a6da962 583 addEndpoint(EPBULK_IN, MAX_PACKET_SIZE_EPBULK);
Dance 0:de885a6da962 584 addEndpoint(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK);
Dance 0:de885a6da962 585
Dance 0:de885a6da962 586 //activate readings
Dance 0:de885a6da962 587 readStart(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK);
Dance 0:de885a6da962 588 return true;
Dance 0:de885a6da962 589 }
Dance 0:de885a6da962 590
Dance 0:de885a6da962 591
Dance 0:de885a6da962 592 uint8_t * USBMSD::stringIinterfaceDesc() {
Dance 0:de885a6da962 593 static uint8_t stringIinterfaceDescriptor[] = {
Dance 0:de885a6da962 594 0x08, //bLength
Dance 0:de885a6da962 595 STRING_DESCRIPTOR, //bDescriptorType 0x03
Dance 0:de885a6da962 596 'M',0,'S',0,'D',0 //bString iInterface - MSD
Dance 0:de885a6da962 597 };
Dance 0:de885a6da962 598 return stringIinterfaceDescriptor;
Dance 0:de885a6da962 599 }
Dance 0:de885a6da962 600
Dance 0:de885a6da962 601 uint8_t * USBMSD::stringIproductDesc() {
Dance 0:de885a6da962 602 static uint8_t stringIproductDescriptor[] = {
Dance 0:de885a6da962 603 0x12, //bLength
Dance 0:de885a6da962 604 STRING_DESCRIPTOR, //bDescriptorType 0x03
Dance 0:de885a6da962 605 'M',0,'b',0,'e',0,'d',0,' ',0,'M',0,'S',0,'D',0 //bString iProduct - Mbed Audio
Dance 0:de885a6da962 606 };
Dance 0:de885a6da962 607 return stringIproductDescriptor;
Dance 0:de885a6da962 608 }
Dance 0:de885a6da962 609
Dance 0:de885a6da962 610
Dance 0:de885a6da962 611 uint8_t * USBMSD::configurationDesc() {
Dance 0:de885a6da962 612 static uint8_t configDescriptor[] = {
Dance 0:de885a6da962 613
Dance 0:de885a6da962 614 // Configuration 1
Dance 0:de885a6da962 615 9, // bLength
Dance 0:de885a6da962 616 2, // bDescriptorType
Dance 0:de885a6da962 617 LSB(9 + 9 + 7 + 7), // wTotalLength
Dance 0:de885a6da962 618 MSB(9 + 9 + 7 + 7),
Dance 0:de885a6da962 619 0x01, // bNumInterfaces
Dance 0:de885a6da962 620 0x01, // bConfigurationValue: 0x01 is used to select this configuration
Dance 0:de885a6da962 621 0x00, // iConfiguration: no string to describe this configuration
Dance 0:de885a6da962 622 0xC0, // bmAttributes
Dance 0:de885a6da962 623 100, // bMaxPower, device power consumption is 100 mA
Dance 0:de885a6da962 624
Dance 0:de885a6da962 625 // Interface 0, Alternate Setting 0, MSC Class
Dance 0:de885a6da962 626 9, // bLength
Dance 0:de885a6da962 627 4, // bDescriptorType
Dance 0:de885a6da962 628 0x00, // bInterfaceNumber
Dance 0:de885a6da962 629 0x00, // bAlternateSetting
Dance 0:de885a6da962 630 0x02, // bNumEndpoints
Dance 0:de885a6da962 631 0x08, // bInterfaceClass
Dance 0:de885a6da962 632 0x06, // bInterfaceSubClass
Dance 0:de885a6da962 633 0x50, // bInterfaceProtocol
Dance 0:de885a6da962 634 0x04, // iInterface
Dance 0:de885a6da962 635
Dance 0:de885a6da962 636 // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
Dance 0:de885a6da962 637 7, // bLength
Dance 0:de885a6da962 638 5, // bDescriptorType
Dance 0:de885a6da962 639 PHY_TO_DESC(EPBULK_IN), // bEndpointAddress
Dance 0:de885a6da962 640 0x02, // bmAttributes (0x02=bulk)
Dance 0:de885a6da962 641 LSB(MAX_PACKET_SIZE_EPBULK),// wMaxPacketSize (LSB)
Dance 0:de885a6da962 642 MSB(MAX_PACKET_SIZE_EPBULK),// wMaxPacketSize (MSB)
Dance 0:de885a6da962 643 0, // bInterval
Dance 0:de885a6da962 644
Dance 0:de885a6da962 645 // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
Dance 0:de885a6da962 646 7, // bLength
Dance 0:de885a6da962 647 5, // bDescriptorType
Dance 0:de885a6da962 648 PHY_TO_DESC(EPBULK_OUT), // bEndpointAddress
Dance 0:de885a6da962 649 0x02, // bmAttributes (0x02=bulk)
Dance 0:de885a6da962 650 LSB(MAX_PACKET_SIZE_EPBULK),// wMaxPacketSize (LSB)
Dance 0:de885a6da962 651 MSB(MAX_PACKET_SIZE_EPBULK),// wMaxPacketSize (MSB)
Dance 0:de885a6da962 652 0 // bInterval
Dance 0:de885a6da962 653 };
Dance 0:de885a6da962 654 return configDescriptor;
Dance 0:de885a6da962 655 }